CVE-2018-16843

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    CVE-2018-16843

    Published: 7 Nov 2018Last Modified: 8 Jul 2026

    Summary:

    Details: nginx before versions 1.15.6 and 1.14.1 has a vulnerability in the implementation of HTTP/2 that can allow for excessive memory consumption. This issue affects nginx compiled with the ngx_http_v2_module (not compiled by default) if the 'http2' option of the 'listen' directive is used in a configuration file.

    References: http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00035.html, http://mailman.nginx.org/pipermail/nginx-announce/2018/000220.html, http://seclists.org/fulldisclosure/2021/Sep/36, http://www.securityfocus.com/bid/105868, http://www.securitytracker.com/id/1042038, https://access.redhat.com/errata/RHSA-2018:3653, https://access.redhat.com/errata/RHSA-2018:3680, https://access.redhat.com/errata/RHSA-2018:3681, https://support.apple.com/kb/HT212818, https://usn.ubuntu.com/3812-1/, https://www.debian.org/security/2018/dsa-4335, https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16843

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -79b5093854dbbae2e8a53df1b08d2ec466b124ba

    Affected versions

    release-1.15.5
    release-1.15.4
    release-1.15.3
    release-1.15.2
    release-1.15.1
    release-1.15.0

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High